I have 802.11b set up, with 2 computers. This computer works fine, but when my other computer tries to connect to the internet, it says "invalid ip" and wont connect to the internet. When I connect my computer directly to my cable modem via NIC, it works fine and connects to the internet, but for some reason my wireless all of the sudden doesn't work on it (it worked fine a week ago). Please let me know what's the problem, and what I can do to fix it. Thanks.